Question 388496
{{{ y=2x^2+4x-6 }}}
 {{{y=2(x^2+2x-3)}}}
 {{{y=2(x+3)(x-1)}}}
{{{(x+3)(x-1)=0}}}
Two solutions:
{{{x+3=0}}}
{{{x=-3}}}
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{{{x-1=0}}}
{{{x=1}}}
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{{{drawing(300,300,-4,2,-3,3,grid(1),circle(1,0,0.2),circle(-3,0,0.2),graph(300,300,-4,2,-3,3,0,2x^2+4x-6))}}}